Horse Creek K227: Iverian, Australia
collected by Shergold 1969
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Brachiopoda indet.
Cuvier 1805
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Trilobita
- Changshaniidae
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Wentsuia iota
Shergold 1980
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Trilobita
- Olenida
- Aphelaspidae
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Taenicephalites plerus
Shergold 1980
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Trilobita
- Olenida
- Idahoiidae
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Maladioidella doylei
Shergold 1980
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Trilobita
- Asaphida
- Ceratopygidae
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Haniwoides varia
Shergold 1980
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Trilobita
- Asaphida
- Asaphidae
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Atopasaphus cf. stenocanthus
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| see common names | |||||||
Geography
| Country: | Australia | State/province: | Queensland |
| Coordinates: | 22.0° South, 140.3° East (view map) | ||
| Paleocoordinates: | 25.0° North, 174.8° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Furongian |
| Stage: | Jiangshanian | 10 m.y. bin: | Cambrian 5 |
| Key time interval: | Iverian | Trilobite zone: | Wentsuia iota - Rhaptagnostus apsis |
| Age range of interval: | 494.00000 - 489.50000 m.y. ago |
Stratigraphy
| Formation: | Chatsworth |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | ooidal,shelly/skeletal lithified silty grainstone |
| Lithology description: "Intraclastic limestone - clast skeletal ooid grainstone - with clasts of mudstone and elongate finely laminated silty pelletal grainstone; vugs, bored clasts and patches of recrystallisation." | |
| Environment: | open shallow subtidal |
| Geology comments: "rocks were deposited in high energy shallow subtidal, intertidal and possibly aeolian environments" | |
Taphonomy
| Modes of preservation: | body,mold/impression |
| Size of fossils: | macrofossils |
| Disassociated major elements: | all |
Collection methods and comments
| Collection methods: | surface (in situ),mechanical,field collection | ||
| Reason for describing collection: | biostratigraphic analysis | ||
| Collectors: | Shergold | Collection dates: | 1969 |
Metadata
| Database number: | 228204 | ||
| Authorizer: | M. Hopkins | Enterer: | M. Hopkins |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2022-11-22 13:50:58 | Last modified: | 2023-01-21 17:09:20 |
| Access level: | the public | Released: | 2022-11-22 13:50:58 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 83129. | J. H. Shergold. 1980. Late Cambrian trilobites from the Chatsworth Limestone, western Queensland. Bureau of Mineral Resources, Geology and Geophysics Bulletin 186:1-108 [M. Hopkins/M. Hopkins] |